No, this isn’t just a hard drive turned on its side, it’s a new technology called perpendicular magnetic recording (PMR). This new technology allows for higher data storage density on the drive by stacking the storage “bits” vertically and more densely.  The new MHW2 line using PMR achieves up to 160GB in capacity in a compact 2.5” form factor. 

Perpendicular storage isn’t the only update to these drives.  Engineers also incorporated new anti-shock and power saving technologies allowing the device to withstand up to 300g’s of mechanical shock and energy efficiency as good as 3.8milliWatts/GB, both of which are industry best according to Fujitsu.  The 80GB and 160GB versions of the drive will be available October of this year.